ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/socket/info.c
Revision: 1.4
Committed: Sun Aug 13 17:16:05 2006 UTC (17 years, 9 months ago) by elmex
Content type: text/plain
Branch: MAIN
CVS Tags: HEAD
Changes since 1.3: +0 -0 lines
State: FILE REMOVED
Log Message: 
Made server compile with C++.
Removed cfanim plugin and crossedit.
C++ here we come.

File Contents

# Content
1 /*
2 * static char *rcsid_sock_info_c =
3 * "$Id$";
4 */
5
6 /*
7 CrossFire, A Multiplayer game for X-windows
8
9 Copyright (C) 2002 Mark Wedel & Crossfire Development Team
10 Copyright (C) 1992 Frank Tore Johansen
11
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
16
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25
26 The authors can be reached via e-mail at crossfire-devel@real-time.com
27 */
28
29 /**
30 * \file
31 * Basic client output functions.
32 *
33 * \date 2003-12-02
34 *
35 * This file implements some of the simpler output functions to the
36 * client. Basically, things like sending text strings along
37 */
38
39 #include <global.h>
40 #include <sproto.h>
41 #include <stdarg.h>
42 #include <spells.h>
43 #include <skills.h>
44
45 /**
46 * Draws a normal message on the client. It is pretty
47 * much the same thing as the draw_info above, but takes a color
48 * parameter. the esrv_drawinfo functions should probably be
49 * replaced with this, just using black as the color.
50 */
51 static void esrv_print_msg(NewSocket *ns,int color, const char *str)
52 {
53 char buf[HUGE_BUF];
54
55 if (ns->status == Ns_Old) {
56 snprintf(buf,HUGE_BUF,"%s\n", str);
57 } else {
58 snprintf(buf,HUGE_BUF, "drawinfo %d %s", color, str);
59 }
60 /* LOG(llevDebug,"sending %s to socket, len=%d\n", buf, strlen(buf));*/
61 Write_String_To_Socket(ns, buf, strlen(buf));
62 }
63
64 /**
65 * Draws an extended message on the client.
66 * ns the socket to send message to
67 * color color informations (used mainly if client does not support message type)
68 * type,
69 * subtype type and subtype of text message
70 * intro Intro message to send with main message if client does not support the message type
71 * message The main message
72 */
73 static void esrv_print_ext_msg(NewSocket *ns,int color,uint8 type, uint8 subtype, const char *message)
74 {
75 char buf[HUGE_BUF];
76 snprintf(buf,HUGE_BUF, "drawextinfo %d %hhu %hhu %s", color, type, subtype, message);
77 Write_String_To_Socket(ns, buf, strlen(buf));
78 /* LOG(llevDebug,"sending %s to socket, len=%d", buf, strlen(buf));*/
79
80 }
81
82 /**
83 * Frontend for esrv_print_msg
84 * \param colr message color
85 * \param pl player to send to. Can be NULL
86 * \param tmp message to send. Can be NULL
87 *
88 * If pl is NULL or without contr set, writes message to log.
89 *
90 * Else sends message to player via esrv_print_msg
91 */
92
93 static void print_message(int colr, const object *pl, const char *tmp) {
94
95 if(tmp == (char *) NULL) {
96 tmp="[NULL]";
97 }
98
99 if (!pl || (pl->type == PLAYER && pl->contr == NULL))
100 return;
101
102 if (pl->type == PLAYER) {
103 esrv_print_msg(&pl->contr->socket,colr,(char*) tmp);
104 return;
105 }
106 }
107
108
109 /**
110 * Prints out the contents of specified buffer structures,
111 * and clears the string.
112 */
113
114 void flush_output_element(const object *pl, Output_Buf *outputs)
115 {
116 char tbuf[MAX_BUF];
117
118 if (outputs->buf==NULL) return;
119 if (outputs->count > 1) {
120 snprintf(tbuf,MAX_BUF, "%d times %s", outputs->count, outputs->buf);
121 print_message(NDI_BLACK, pl, tbuf);
122 } else
123 print_message(NDI_BLACK, pl, outputs->buf);
124
125 free_string(outputs->buf);
126 outputs->buf=NULL;
127 outputs->first_update=0; /* This way, it will be reused */
128 }
129
130 /**
131 * Sends message to player through output buffers.
132 * \param pl player to send message
133 * \param buf message to send
134 *
135 * If player's output_count is 1, sends message directly.
136 *
137 * Else checks output buffers for specified message.
138 *
139 * If found, checks if message should be sent now.
140 *
141 * If message not already in buffers, flushes olders buffer,
142 * and adds message to queue.
143 */
144
145 static void check_output_buffers(const object *pl, const char *buf)
146 {
147 int i, oldest=0;
148
149 if (pl->contr->outputs_count<2) {
150 print_message(NDI_BLACK, pl, buf);
151 return;
152 }
153 else {
154 for (i=0; i<NUM_OUTPUT_BUFS; i++) {
155 if (pl->contr->outputs[i].buf &&
156 !strcmp(buf, pl->contr->outputs[i].buf)) break;
157 else if (pl->contr->outputs[i].first_update <
158 pl->contr->outputs[oldest].first_update)
159 oldest=i;
160 }
161 /* We found a match */
162 if (i<NUM_OUTPUT_BUFS) {
163 pl->contr->outputs[i].count++;
164 if (pl->contr->outputs[i].count>=pl->contr->outputs_count) {
165 flush_output_element(pl, &pl->contr->outputs[i]);
166 }
167 }
168 /* No match - flush the oldest, and put the new one in */
169 else {
170 flush_output_element(pl, &pl->contr->outputs[oldest]);
171
172 pl->contr->outputs[oldest].first_update = pticks;
173 pl->contr->outputs[oldest].count = 1;
174 if (pl->contr->outputs[oldest].buf!=NULL)
175 free_string(pl->contr->outputs[oldest].buf);
176 pl->contr->outputs[oldest].buf = add_string(buf);
177 }
178 }
179 }
180
181
182
183 /**
184 * Sends message to player(s).
185 *
186 * flags is various flags - mostly color, plus a few specials.
187 *
188 * pri is priority. It is a little odd - the lower the value, the more
189 * important it is. Thus, 0 gets sent no matter what. Otherwise, the
190 * value must be less than the listening level that the player has set.
191 * Unfortunately, there is no clear guideline on what each level does what.
192 *
193 * pl can be passed as NULL - in fact, this will be done if NDI_ALL is set
194 * in the flags.
195 *
196 * If message is black, and not NDI_UNIQUE, gets sent through output buffers.
197 *
198 */
199
200 void new_draw_info(int flags, int pri, const object *pl, const char *buf)
201 {
202
203 if (flags & NDI_ALL) {
204 player *tmppl;
205 int i;
206
207 for (tmppl=first_player; tmppl!=NULL; tmppl=tmppl->next)
208 new_draw_info((flags & ~NDI_ALL), pri, tmppl->ob, buf);
209
210 for (i=1; i<socket_info.allocated_sockets; i++) {
211 if (init_sockets[i].status == Ns_Old && init_sockets[i].old_mode != Old_Listen && pri< 10) {
212 cs_write_string(&init_sockets[i], buf, strlen(buf));
213 /* Most messages don't have a newline, so add one */
214 cs_write_string(&init_sockets[i], "\n", 1);
215 }
216 }
217
218 return;
219 }
220 if(!pl || (pl->type==PLAYER && pl->contr==NULL)) {
221 /* Write to the socket? */
222 print_message(0, NULL, buf);
223 return;
224 }
225 if (pl->type!=PLAYER) return;
226 if (pri>=pl->contr->listening) return;
227
228 if ((flags&NDI_COLOR_MASK)==NDI_BLACK && !(flags &NDI_UNIQUE)) {
229 /* following prints stuff out, as appropriate */
230 check_output_buffers(pl, buf);
231 }
232 else {
233 print_message(flags&NDI_COLOR_MASK, pl, buf);
234 }
235 }
236
237 /**
238 * Wrapper for new_draw_info printf-like.
239 *
240 * This is a pretty trivial function, but it allows us to use printf style
241 * formatting, so instead of the calling function having to do it, we do
242 * it here. It may also have advantages in the future for reduction of
243 * client/server bandwidth (client could keep track of various strings
244 */
245
246 void new_draw_info_format(int flags, int pri, const object *pl, const char *format, ...)
247 {
248 char buf[HUGE_BUF];
249
250 va_list ap;
251 va_start(ap, format);
252
253 vsnprintf(buf, HUGE_BUF, format, ap);
254
255 va_end(ap);
256
257 new_draw_info(flags, pri, pl, buf);
258 }
259
260
261 void draw_ext_info(
262 int flags, int pri, const object *pl, uint8 type,
263 uint8 subtype, const char* message, const char* oldmessage){
264
265 if(!pl || (pl->type!=PLAYER) || (pl->contr==NULL))
266 return;
267
268 if (pri>=pl->contr->listening) return;
269 if (!CLIENT_SUPPORT_READABLES(&pl->contr->socket,type)){
270 char *buf = (char*)malloc(strlen(oldmessage==NULL?message:oldmessage)+1);
271 if (buf==NULL)
272 LOG(llevError,"info::draw_ext_info -> Out of memory!");
273 else{
274 strcpy(buf,oldmessage==NULL?message:oldmessage);
275 strip_media_tag(buf);
276 new_draw_info(flags, pri, pl, buf);
277 free(buf);
278 }
279 }else{
280 esrv_print_ext_msg(&pl->contr->socket,flags&NDI_COLOR_MASK,type,subtype,message);
281 }
282 }
283
284 void draw_ext_info_format(
285 int flags, int pri, const object *pl, uint8 type,
286 uint8 subtype, const char* old_format,
287 char* new_format, ...){
288
289 char buf[HUGE_BUF];
290 if(!pl || (pl->type!=PLAYER) || (pl->contr==NULL))
291 return;
292
293 if (pri>=pl->contr->listening) return;
294 if (!CLIENT_SUPPORT_READABLES(&pl->contr->socket,type)){
295 va_list ap;
296 LOG(llevDebug,"Non supported extension text type for client.\n");
297 va_start(ap, new_format);
298 vsnprintf(buf, HUGE_BUF, old_format, ap);
299 va_end(ap);
300 new_draw_info(flags, pri, pl, buf);
301 return;
302 }else{
303 va_list ap;
304 va_start(ap, new_format);
305 vsnprintf(buf, HUGE_BUF, new_format, ap);
306 va_end(ap);
307 strip_media_tag(buf);
308 esrv_print_ext_msg(&pl->contr->socket,flags&NDI_COLOR_MASK,type,subtype,buf);
309 }
310 }
311 /**
312 * Writes to everyone on the map *except* op. This is useful for emotions.
313 */
314
315 void new_info_map_except(int color, mapstruct *map, object *op, const char *str) {
316 player *pl;
317
318 for(pl = first_player; pl != NULL; pl = pl->next)
319 if(pl->ob != NULL && pl->ob->map == map && pl->ob != op) {
320 new_draw_info(color, 0, pl->ob, str);
321 }
322 }
323
324 /**
325 * Writes to everyone on the map except op1 and op2
326 */
327
328 void new_info_map_except2(int color, mapstruct *map, object *op1, object *op2,
329 const char *str) {
330 player *pl;
331
332 for(pl = first_player; pl != NULL; pl = pl->next)
333 if(pl->ob != NULL && pl->ob->map == map
334 && pl->ob != op1 && pl->ob != op2) {
335 new_draw_info(color, 0, pl->ob, str);
336 }
337 }
338
339 /**
340 * Writes to everyone on the specified map
341 */
342
343 void new_info_map(int color, mapstruct *map, const char *str) {
344 player *pl;
345
346 for(pl = first_player; pl != NULL; pl = pl->next)
347 if(pl->ob != NULL && pl->ob->map == map) {
348 new_draw_info(color, 0, pl->ob, str);
349 }
350 }
351
352
353 /**
354 * This does nothing now. However, in theory, we should probably send
355 * something to the client and let the client figure out how it might want
356 * to handle this
357 */
358 void clear_win_info(object *op)
359 {
360 }
361
362 /**
363 * Get player's current range attack in obuf.
364 */
365 void rangetostring(object *pl,char *obuf)
366 {
367 switch(pl->contr->shoottype) {
368 case range_none:
369 strcpy(obuf,"Range: nothing");
370 break;
371
372 case range_bow:
373 {
374 object *op;
375
376 for (op = pl->inv; op; op=op->below)
377 if (op->type == BOW && QUERY_FLAG (op, FLAG_APPLIED))
378 break;
379 if(op==NULL) break;
380
381 sprintf (obuf, "Range: %s (%s)", query_base_name(op, 0),
382 op->race ? op->race : "nothing");
383 }
384 break;
385
386 case range_magic:
387 if (settings.casting_time == TRUE) {
388 if (pl->casting_time > -1) {
389 if (pl->casting_time == 0)
390 sprintf(obuf,"Range: Holding spell (%s)",
391 pl->spell->name);
392 else
393 sprintf(obuf,"Range: Casting spell (%s)",
394 pl->spell->name);
395 } else
396 sprintf(obuf,"Range: spell (%s)",
397 pl->contr->ranges[range_magic]->name);
398 } else
399 sprintf(obuf,"Range: spell (%s)",
400 pl->contr->ranges[range_magic]->name);
401 break;
402
403 case range_misc:
404 sprintf(obuf,"Range: %s",
405 pl->contr->ranges[range_misc]?
406 query_base_name(pl->contr->ranges[range_misc],0): "none");
407 break;
408
409 /* range_scroll is only used for controlling golems. If the
410 * the player does not have a golem, reset some things.
411 */
412 case range_golem:
413 if (pl->contr->ranges[range_golem]!=NULL)
414 sprintf(obuf,"Range: golem (%s)",pl->contr->ranges[range_golem]->name);
415 else {
416 pl->contr->shoottype = range_none;
417 strcpy(obuf,"Range: nothing");
418 }
419 break;
420
421 case range_skill:
422 sprintf(obuf,"Skill: %s", pl->chosen_skill!=NULL ?
423 pl->chosen_skill->name : "none");
424 break;
425
426 case range_builder:
427 sprintf( obuf, "Builder: %s", query_base_name( pl->contr->ranges[ range_builder ], 0 ) );
428 break;
429
430 default:
431 strcpy(obuf,"Range: illegal");
432 }
433 }
434
435 /**
436 * Sets player title.
437 */
438 void set_title(object *pl, char *buf)
439 {
440 /* Eneq(@csd.uu.se): Let players define their own titles. */
441 if (pl->contr->own_title[0]=='\0')
442 sprintf(buf,"Player: %s the %s",pl->name,pl->contr->title);
443 else
444 sprintf(buf,"Player: %s %s",pl->name,pl->contr->own_title);
445 }
446
447
448 /**
449 * Helper for magic map creation.
450 *
451 * Takes a player, the map_mark array and an x and y starting position.
452 * pl is the player.
453 * px, py are offsets from the player.
454 *
455 * This function examines all the adjacant spaces next to px, py.
456 * It updates the map_mark arrow with the color and high bits set
457 * for various code values.
458 */
459 static void magic_mapping_mark_recursive(object *pl, char *map_mark, int px, int py)
460 {
461 int x, y, dx, dy,mflags;
462 sint16 nx, ny;
463 mapstruct *mp;
464 New_Face *f;
465
466 for (dx = -1; dx <= 1; dx++) {
467 for (dy = -1; dy <= 1; dy++) {
468 x = px + dx;
469 y = py + dy;
470
471 if (FABS(x) >= MAGIC_MAP_HALF || FABS(y) >= MAGIC_MAP_HALF) continue;
472
473 mp = pl->map;
474 nx = pl->x + x;
475 ny = pl->y + y;
476
477 mflags = get_map_flags(pl->map, &mp, nx, ny, &nx, &ny);
478 if (mflags & P_OUT_OF_MAP) continue;
479
480 if (map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] == 0) {
481 f= GET_MAP_FACE(mp, nx, ny, 0);
482 if (f == blank_face)
483 f= GET_MAP_FACE(mp, nx, ny, 1);
484 if (f == blank_face)
485 f= GET_MAP_FACE(mp, nx, ny, 2);
486
487 /* Should probably have P_NO_MAGIC here also, but then shops don't
488 * work.
489 */
490 if (mflags & P_BLOCKSVIEW)
491 map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] = FACE_WALL | (f?f->magicmap:0);
492 else {
493 map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] = FACE_FLOOR | (f?f->magicmap:0);
494 magic_mapping_mark_recursive(pl, map_mark, x, y);
495 }
496 }
497 }
498 }
499 }
500
501
502 /**
503 * Creates magic map for player.
504 *
505 * Note: For improved magic mapping display, the space that blocks
506 * the view is now marked with value 2. Any dependencies of map_mark
507 * being nonzero have been changed to check for 1. Also, since
508 * map_mark is a char value, putting 2 in should cause no problems.
509 *
510 * This function examines the map the player is on, and determines what
511 * is visible. 2 is set for walls or objects that blocks view. 1
512 * is for open spaces. map_mark should already have been initialized
513 * to zero before this is called.
514 * strength is an initial strength*2 rectangular area that we automatically
515 * see in/penetrate through.
516 */
517
518 void magic_mapping_mark(object *pl, char *map_mark, int strength)
519 {
520 int x, y, mflags;
521 sint16 nx, ny;
522 mapstruct *mp;
523 New_Face *f;
524
525 for (x = -strength; x <strength; x++) {
526 for (y = -strength; y <strength; y++) {
527 mp = pl->map;
528 nx = pl->x + x;
529 ny = pl->y + y;
530 mflags = get_map_flags(pl->map, &mp, nx, ny, &nx, &ny);
531 if (mflags & P_OUT_OF_MAP)
532 continue;
533 else {
534 f= GET_MAP_FACE(mp, nx, ny, 0);
535 if (f == blank_face)
536 f= GET_MAP_FACE(mp, nx, ny, 1);
537 if (f == blank_face)
538 f= GET_MAP_FACE(mp, nx, ny, 2);
539 }
540
541 if (mflags & P_BLOCKSVIEW)
542 map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] = FACE_WALL | (f?f->magicmap:0);
543 else {
544 map_mark[MAGIC_MAP_HALF + x + MAGIC_MAP_SIZE* (MAGIC_MAP_HALF + y)] = FACE_FLOOR | (f?f->magicmap:0);
545 magic_mapping_mark_recursive(pl, map_mark, x, y);
546 }
547 }
548 }
549 }
550
551
552 /**
553 * Creates and sends magic map to player.
554 *
555 * The following function is a lot messier than it really should be,
556 * but there is no real easy solution.
557 *
558 * Mark Wedel
559 */
560
561 void draw_magic_map(object *pl)
562 {
563 int x,y;
564 char *map_mark = (char *) calloc(MAGIC_MAP_SIZE*MAGIC_MAP_SIZE, 1);
565 int xmin, xmax, ymin, ymax;
566 SockList sl;
567
568 if (pl->type!=PLAYER) {
569 LOG(llevError,"Non player object called draw_map.\n");
570 return;
571 }
572
573 /* First, we figure out what spaces are 'reachable' by the player */
574 magic_mapping_mark(pl, map_mark, 3);
575
576 /* We now go through and figure out what spaces have been
577 * marked, and thus figure out rectangular region we send
578 * to the client (eg, if only a 10x10 area is visible, we only
579 * want to send those 100 spaces.)
580 */
581 xmin = MAGIC_MAP_SIZE;
582 ymin = MAGIC_MAP_SIZE;
583 xmax = 0;
584 ymax = 0;
585 for(x = 0; x < MAGIC_MAP_SIZE ; x++) {
586 for(y = 0; y < MAGIC_MAP_SIZE; y++) {
587 if (map_mark[x + MAP_WIDTH(pl->map) * y] | FACE_FLOOR) {
588 xmin = x < xmin ? x : xmin;
589 xmax = x > xmax ? x : xmax;
590 ymin = y < ymin ? y : ymin;
591 ymax = y > ymax ? y : ymax;
592 }
593 }
594 }
595
596 sl.buf=malloc(MAXSOCKBUF);
597 snprintf((char*)sl.buf, MAXSOCKBUF, "magicmap %d %d %d %d ", (xmax-xmin+1), (ymax-ymin+1),
598 MAGIC_MAP_HALF - xmin, MAGIC_MAP_HALF - ymin);
599 sl.len=strlen((char*)sl.buf);
600
601 for (y = ymin; y <= ymax; y++) {
602 for (x = xmin; x <= xmax; x++) {
603 sl.buf[sl.len++]= map_mark[x+MAGIC_MAP_SIZE*y] & ~FACE_FLOOR;
604 } /* x loop */
605 } /* y loop */
606
607 Send_With_Handling(&pl->contr->socket, &sl);
608 free(sl.buf);
609 free(map_mark);
610 }
611
612
613 /**
614 * Send a kill log record to sockets
615 */
616
617 void Log_Kill(const char *Who,
618 const char *What, int WhatType,
619 const char *With, int WithType)
620 {
621 int i;
622 size_t len;
623 char buf[MAX_BUF];
624
625 if (With!=NULL) {
626 snprintf(buf, MAX_BUF, "%s\t%s\t%d\t%s\t%d\n",Who,What,WhatType,With,WithType);
627 }
628 else {
629 snprintf(buf,MAX_BUF, "%s\t%s\t%d\n",Who,What,WhatType);
630 }
631 len=strlen(buf);
632 for(i=1; i<socket_info.allocated_sockets; i++) {
633 if (init_sockets[i].old_mode == Old_Listen) {
634 cs_write_string(&init_sockets[i], buf, len);
635 }
636 }
637 }